roy@alanine.phri.nyu.edu (Roy Smith) (01/06/90)
Somebody was looking for hard-to-find errors in C programs, to
compile a list of them. Here's one I just committed (but fortunately
caught as soon as I typed it). I meant to type
while (pos < old->next->n)
but transposed the second -> and ended up with
while (pos < old->next>-n)
which appears to be legal. You can parse it as
while (pos < (old->next) > -n)
which is legal, but certainly not what I meant. I suppose this might draw
some warnings about illegally mixing integers and pointers, so it might not
be so hard to find. I honestly don't know offhand which way the "<" and ">"
group, nor do I really care.
--
Roy Smith, Public Health Research Institute
455 First Avenue, New York, NY 10016
roy@alanine.phri.nyu.edu -OR- {att,philabs,cmcl2,rutgers,hombre}!phri!roy
"My karma ran over my dogma"